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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">gastro-j</journal-id><journal-title-group><journal-title xml:lang="ru">Российский журнал гастроэнтерологии, гепатологии, колопроктологии</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Gastroenterology, Hepatology, Coloproctology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1382-4376</issn><issn pub-type="epub">2658-6673</issn><publisher><publisher-name>«Gastro» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22416/1382-4376-2024-34-2-72-82</article-id><article-id custom-type="elpub" pub-id-type="custom">gastro-j-943</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Микробиота желудка у пациентов с диспепсией: метатранскриптомный анализ</article-title><trans-title-group xml:lang="en"><trans-title>Gastric Microbiota in Patients with Dyspepsia: Metatranscriptomic Analysis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9185-4217</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куприянова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kupriyanova</surname><given-names>Е. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Куприянова Елена Андреевна — научный сотрудник НИЛ «Мультиомиксные технологии живых систем» Института фундаментальной медицины и биологии</p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Elena A. Kupriyanova — Researcher, Laboratory of Multiomics Technologies of Living Systems, Institute of Fundamental Medicine and Biology</p><p>420008, Kazan, Kremlyovskaya str., 18</p><p> </p></bio><email xlink:type="simple">fewrandomletters@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7445-2091</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Маркелова</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Markelova</surname><given-names>М. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Маркелова Мария Ивановна — научный сотрудник НИЛ «Мультиомиксные технологии живых систем» Института фундаментальной медицины и биологии</p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Maria I. Markelova — Researcher, Laboratory of Multiomics Technologies of Living Systems, Institute of Fundamental Medicine and Biology</p><p>420008, Kazan, Kremlyovskaya str., 18</p></bio><email xlink:type="simple">mimarkelova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2449-811X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зиятдинова</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ziyatdinova</surname><given-names>Е. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зиятдинова Эльвира Альбертовна — заведующая клинико-диагностической лабораторией № 1 Медико-санитарной части</p><p>420043, г. Казань, ул. Чехова, 1а</p></bio><bio xml:lang="en"><p>Elvira A. Ziyatdinova — Head of the Clinical Diagnostic Laboratory No. 1 of the Medical-Sanitary Unit</p><p>420043, Kazan, Chekhov str., 1а</p></bio><email xlink:type="simple">elvira.ziyatdinova@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5985-3089</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафина</surname><given-names>Д. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Safina</surname><given-names>D. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сафина Диляра Дамировна — кандидат медицинских наук, старший преподаватель кафедры внутренних болезней Института фундаментальной медицины и биологии</p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Dilyara D. Safina — Cand. Sci. (Med.), Senior Lecturer at the Department of Internal Medicine, Institute of Fundamental Medicine and Biology</p><p>420008, Kazan, Kremlyovskaya str., 18</p><p> </p></bio><email xlink:type="simple">dilyarad04@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4689-7058</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сафин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Safin</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сафин Айрат Габбасович — врач-эндоскопист, заведующий отделением эндоскопии № 2 Медико-санитарной части</p><p>420043, г. Казань, ул. Чехова, 1а</p></bio><bio xml:lang="en"><p>Airat G. Safin — Endoscopist, Head of the Endoscopy Department No. 2, Medical-Sanitary Unit</p><p>420043, Kazan, Chekhova str., 1а</p></bio><email xlink:type="simple">tabibrkb2@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-0745-9100</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алиева</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Alieva</surname><given-names>I. М.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алиева Ильмира Марсовна — кандидат медицинских наук, врач-эндоскопист Медико-санитарной части</p><p>420043, г. Казань, ул. Чехова, 1а</p></bio><bio xml:lang="en"><p>Ilmira M. Alieva — Cand. Sci. (Med.), Endoscopist at the Medical-Sanitary Unit</p><p>420043, Kazan, Chekhova str., 1a</p></bio><email xlink:type="simple">alievai77@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7459-9878</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Залялов</surname><given-names>Р. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Zalyalov</surname><given-names>R. К.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Залялов Рамиль Камилевич — врач-эндоскопист, исполняющий обязанности заведующего эндоскопическим отделением № 1 Медико-санитарной части</p><p>420043, г. Казань, ул. Чехова, 1а</p></bio><bio xml:lang="en"><p>Ramil K. Zalyalov — Endoscopist, Acting Head of the Endoscopy Department No. 1 of the Medical-Sanitary Unit</p><p>420043, Kazan, Chekhova str., 1a</p></bio><email xlink:type="simple">romazzol@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1509-6776</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдулхаков</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdulkhakov</surname><given-names>R. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдулхаков Рустам Аббасович — доктор медицинских наук, профессор, профессор кафедры госпитальной терапии; заслуженный врач Республики Татарстан</p><p>420012, г. Казань, ул. Бутлерова, 49</p></bio><bio xml:lang="en"><p>Rustam A. Abdulkhakov — Dr. Sci. (Med.), Professor, Professor at the Department of Hospital Therapy; Honored Doctor of the Republic of Tatarstan</p><p>420012, Kazan, Butlerova str., 49</p></bio><email xlink:type="simple">rustemabdul@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5314-7012</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Григорьева</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Grigoryeva</surname><given-names>Т. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григорьева Татьяна Владимировна — кандидат биологических наук, ведущий научный сотрудник НИЛ «Генетика микроорганизмов» Института фундаментальной медициныи биологии</p><p>420008, г. Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>Tatiana V. Grigoryeva — Cand. Sci. (Biol.), Leading Researcher at the Research Laboratory of Genetics of Microorganisms</p><p>420008, Kazan, Kremlyovskaya str., 18</p></bio><email xlink:type="simple">tatabio@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9542-3580</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдулхаков</surname><given-names>С. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdulkhakov</surname><given-names>S. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абдулхаков Сайяр Рустамович — кандидат медицинских наук, доцент, заведующий кафедрой внутренних болезней Института фундаментальной медицины и биологии; доцент кафедры поликлинической терапии и общей врачебной практики</p><p>420008, г. Казань, ул. Кремлевская, 18</p><p> </p></bio><bio xml:lang="en"><p>Sayar R. Abdulkhakov — Cand. Sci. (Med.), Docent, Head of the Department of Internal Disease, Institute of Fundamental Medicine and Biology; Associate Professor at the Departmentof Outpatient Therapy and General Medical Practice</p><p>420008, Kazan, Kremlyovskaya str., 18</p></bio><email xlink:type="simple">sayarabdul@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Казанский (Приволжский) федеральный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan (Volga Region) Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Казанский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГАОУ ВО «Казанский (Приволжский) федеральный университет»; ФГБОУ ВО «Казанский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan (Volga Region) Federal University; Kazan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>04</day><month>04</month><year>2024</year></pub-date><volume>34</volume><issue>2</issue><fpage>72</fpage><lpage>82</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Куприянова Е.А., Маркелова М.И., Зиятдинова Э.А., Сафина Д.Д., Сафин А.Г., Алиева И.М., Залялов Р.К., Абдулхаков Р.А., Григорьева Т.В., Абдулхаков С.Р., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Куприянова Е.А., Маркелова М.И., Зиятдинова Э.А., Сафина Д.Д., Сафин А.Г., Алиева И.М., Залялов Р.К., Абдулхаков Р.А., Григорьева Т.В., Абдулхаков С.Р.</copyright-holder><copyright-holder xml:lang="en">Kupriyanova Е.А., Markelova М.I., Ziyatdinova Е.А., Safina D.D., Safin A.G., Alieva I.М., Zalyalov R.К., Abdulkhakov R.А., Grigoryeva Т.V., Abdulkhakov S.R.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.gastro-j.ru/jour/article/view/943">https://www.gastro-j.ru/jour/article/view/943</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: оценить состав микробиоты слизистой оболочки тела и антрального отдела желудка.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование были включены 60 пациентов с симптомами диспепсии. Проанализировано по два образца слизистой оболочки желудка каждого пациента — из тела и антрального отдела. В полученных биоптатах определяли наличие инфекции H. pylori методом ПЦР, проводили выделение РНК и подготовку библиотек для метатранскриптомного анализа гена 16S рРНК. Секвенирование осуществляли на приборе MiSeq (Illumina, США) с использованием набора реагентов MiSeq Reagent Kit v3 (600-cycle) (Illumina, США).</p></sec><sec><title>Результаты</title><p>Результаты. В группе Н. pylori-положительных пациентов выявлено снижение видового разнообразия на фоне преобладания бактерий вида Helicobacter pylori, что было подтверждено с помощью индекса Шеннона, среднее значение которого составило 3,6 в группе Н. pylori-положительных и 5,4 в группе Н. pylori-отрицательных пациентов. В случае отсутствия H. pylori наблюдали увеличение представленности бактерий родов Streptococcus, Prevotella и Alloprevotella. Уровень обсемененности H. pylori слизистой оболочки желудка варьирует в антральном отделе и теле желудка, в отдельных случаях достигая разницы в 3,5 раза. При сравнении представленности других бактерий в теле и антральном отделе желудка статистически значимых различий выявлено не было.</p></sec><sec><title>Выводы</title><p>Выводы. Состав микробиоты желудка существенно отличается в зависимости от наличия или отсутствия инфекции H. pylori. Наличие H. pylori сопровождается снижением видового разнообразия бактерий с преобладанием в составе желудочного микробиома H. pylori.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim: to assess the composition of the microbiota of the mucous membrane of the body and the antrum of the stomach.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Sixty patients with dyspeptic symptoms were included into the study. Two biopsy samples of the gastric mucosa (from the body of the stomach and the antrum) were obtained from each patient. The presence of H. pylori infection was confirmed by PCR; RNA was isolated and then libraries were prepared for metatranscriptomic analysis of the 16S rRNA gene. Sequencing was performed on MiSeq (Illumina, USA) using MiSeq Reagent Kit v3 (600-cycle) (Illumina, USA).</p></sec><sec><title>Results</title><p>Results. The bacterial diversity decreases with the predominance of Helicobacter pylori species in H. pylori-positive patients. These results were confirmed by the Shannon index, the average value of which was 3.6 in the H. pylori-positive group and 5.4 in the H. pylori-negative group. In H. pylori-negative patients an increase in the representation of Streptococcus, Prevotella and Alloprevotella genera was observed. The level of H. pylori contamination of the gastric mucosa varies in the antrum and body of the stomach, in some cases reaching a 3.5-fold difference. Representation of other bacteria in the body and antrum of the stomach does not differ significantly.</p></sec><sec><title>Conclusion</title><p>Conclusion. The bacterial composition of the stomach is dependent on the presence of H. pylori. H. pylori leads to the decrease of the bacterial diversity with the predominance of H. pylori in gastric microbiome.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>H. pylori</kwd><kwd>диспепсия</kwd><kwd>микробиота желудка</kwd><kwd>метатранскриптом</kwd><kwd>секвенирование 16S рРНК</kwd></kwd-group><kwd-group xml:lang="en"><kwd>H. pylori</kwd><kwd>dyspepsia</kwd><kwd>gastric microbiota</kwd><kwd>metatranscriptome</kwd><kwd>16S rRNA sequencing</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">работа выполнена в рамках программы стратегического академического лидерства «Приоритет-2030» за счет средств субсидии Министерства науки и высшего образования Российской Федерации по проекту № FZSM-2023-0013 государственного задания Казанского федерального университета.</funding-statement><funding-statement xml:lang="en">this work was carried out within the framework of the “Priority-2030” strategic academic leadership program with subsidies from the Ministry of Science and Higher Education of the Russian Federation under project No. FZSM-2023-0013 of the state assignment of the Kazan Federal University.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Prakash S., Rodes L., Coussa-Charley M., et al. 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